Home / 151,146.82-208,611.48-100,069.44

Finding the Fourth Proportional to 151,146.82, 208,611.48 and 100,069.44

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Solution

The fourth proportional to 151,146.82, 208,611.48 and 100,069.44 is: 138,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,146.82 : 208,611.48 = 100,069.44 : x
  2. Step 2: Convert to fraction form
    151,146.82/208,611.48 = 100,069.44/x
  3. Step 3: Cross multiply
    151,146.82x = 208,611.48 × 100,069.44
  4. Step 4: Simplify right side
    151,146.82x = 20,875,633,981.17
  5. Step 5: Solve for x
    x = 20,875,633,981.17/151,146.82
  6. Step 6: Final answer
    x = 138,114.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.